Relay



7 Aug. 37- J. M. 'AUFIIERO 2,089,157

V RELAY Filed Nov. 15. 1935 INVEN TOR. JOHN M. AUF'IEE'O Mu/Qwe.

ATTORNEYS.

Patented Aug. 3, 1937 UNITED S ATES PATENT OFFICE Remy John M. Anflero, Broo lyn. N.

Y., assignor to E. A. Laboratories, Inc., Brooklyn, N. Y., a corporation of New York Y Application November 15, 1935, Serial No. 49,920 mm. (0;. rzs-sss) This invention relates to a structurally and functionally improved form of relay.

It is an object of the invention to provide a device of this character which will embody relag V V A further object of the.invention is that of furnishing a relay which will be extremely positive in operation and which moreover will withstand extremely rough usage as well as heat without failure or deterioration. i

With these and other objects in mind, reference is had to the accompanying drawing in which: I 1

Fig. 1 is a'\sectional side view of 'a relay; Fig. 2 is a plan view thereof, and Fig. 3 is a perspective view of the apparatus. In these views the numeral 5 indicates a base which may be formed of any desired material and which mounts upon its upper face a disc 6 of suitable insulating material. Applied to the V lower face of the base is a similar disc 'I and the flange of the .base is formed with openings through which fingers or terminals 8, 9 and in extend. These arms are connected in the usual manner with a suitable electrical source and/or to circuits which are to be energized by the relay. To this end each of them may mount a screw ll so that a lead or connector may be suitably coupled thereto.

An L-shaned member I2 is mountedto have one of its arms lie flat against the upper face of the disc 6, its, other arm extending perpendicularly therefrom. Mounted upon the first named arm of such member is anelectromagnet IS. The edge of the upwardly extending'arm is notched so that upwardly extending portions l4 are provided. A plate I! is mounted to extend across the edge of the upwardly extending arm and has rocking engagement therewitln' This plate is notched to accommodate the upwardly extending portions H, it being noted that by this construction a displacement of the parts is prevented. A spring strip I8 is applied tothe outer face of the upwardly extending arm and pro- Jects through a notch provided for its accommodation and is securedto the under face of.

the plate is. Consequently this plate'is always urged upwardly.

To enhance the action of the spring strip I,

t the plate may terminate in a hook-shaped portion "which accommodates one end of a coil spring Ill. The opposite end of this spring is looped around a hook-shaped portion l9 struck from the outer wall of the plate. In order to limit the upward movement of the plate, it is formed with an opening 20. Through this opening there projects an extension 2| forming a part of a plate 22, which latter is secured against movement withirespect to the electromagnet 13.

Also mounted upon the disc 6 is a strip 23 which extends upwardly adjacent the electromagnet and carries at its upper end a contact 24 underlying a contact 25 attached to the outer end of plate l5, it being thus obvious that when theelectromagnet is thus energized, the contacts 24 and 25 will engage to close the circuit.

shaped by ordinary methods and machinery. Thereafter the strip- I6 is secured to the upwardly extending arm l2 and to the underface of plate ii. In this manner the electrical connection is established and a mechanism is fur nished which will serveat all times to urge the contacts 24 and 25 to positions at which they are separated. However, should the strip l8 Obviously, the partsmay be blanked out and break, the apparatus will still function in that the spring I8 will assure the necessary separation; Also, while a less satisfactory form of electrical connection might result, it is apparent that mere contact of the plate with ithe upwardly extending arm will be suflicient to sure a more or less satisfactory connection. fine strip l8,

of course, lies within a notch or r cess extending.

below the edge against which plate i5 bears. It is apparent that with the parts connected in the manner described, relative displacements thereof will be prevented. The insulating discs 8 and I areblanked out and care should be taken to have the lower disc present extensions projecting beyond the flange of the base 5 as has been'especially shown in Figures 2 and 3. In this manner a shorting of the arms 8, 9 and III, incident of the application of the cover- 26 or otherwise, will be precluded. The base may, ofcourse, additionally provide a mounting lug 21 and while the parts may be secured to each other in any desired manner, it is preferred that in all instances rivets 28 be employed. After the parts are mounted the various leads may be connected and the cover is pushed home to engage the flange of the base.

It is apparent that numerous changes in struction andrearrangement of the parts might be resorted to without in any sense departing from the spirit of the invention as defined by the claim.

Having described my invention, what I claim 5 as new and desire to secure by Letters Patent is: A relay including a base, an arm extending upwardly from said base and having its upper edge centrally notched whereby to provide upwardlyprojecting portions adjacent its side edges, 10 an electromagnet positioned upon said base and extending adjacent said arm, a plate rockingly bearing against and supported upon the upper edge of said arm, said plate being formed with notches in its side edges to accommodate said 18 projections and to prevent displacement of said plate, the body of said plate normally extending arm being centrally deepened and a spring strip auxiliary to said spring and having one of its ends secured to the outer face of said arm, its body extending through the centrally deepened portion oi said notch, its opposite end being secured to the underiace of said plate.

JOHN M. AUFIERO. 

